Son of Peter Thebes, or Phebesius, pastor at Sciffersdorf, Adam studied at the University of Wittenberg (MA 1617). On November 24, 1619, he became pastor at Mondschütz, near Wohlau (now Wołów, Poland). In 1627, he became pastor at Wohlau. In 1639, he was appointed pastor of Saints Peter and Paul, the principal church in Liegnitz, and in 1642 he also became assessor of the consistory.